Pipe-organ.



No. 759,338. PATENTED MAY 10, 1904. F. ZEBROWSKI.

PIPE ORGAN.

APPLICATION FILED DEC. 26. 1902.

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PATENTED MAY 10, 1904-.

F. ZEBROWSKI. Y

PIPE ORGAN.

APPLIUATION FILED DBO. 26. 1902.

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Patented May 10, 1904.

PATENT OFFICE.

FELIX ZEBROWSKI, OF CHICAGO, ILLINOIS.

PIPE-ORGAN.

SPECIFICATION forming part of Letters Patent No. 759,338, dated May 10, 1904,

Application filed December 26,1902. Serial No. 136,608. (No model.) 7

1'0 all w/wm it may concern:

Be it known that I, FELIX ZEBROWSKI, acitizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, am the inventor of certain new and useful Improvements in Pipe-Organs, of which the following is a specification.

My invention relates to that class of pipeorgans provided with a wind-chest having a plurality of chambers and means for admitting air to the desired chambers, and thereby to the desired sets of pipes or registers, respectively, and excluding it therefrom.

The principal object of my invention is to provide a simple, economical, and efficient device for supplying and controlling the admission of air or wind, as it is technically termed, to the pipes and for excluding the wind from one or more sets of pipes or registers, respectively, as desired.

A further object of the invention is to enable the key-valves in registers not being used to be free from the air-pressure and to provide means for admitting'air under pressure to any desired number of key-valve compartments.

A-further object is to provide means whereby the respective key-valve compartments may be connected with the compartments containing air under pressure and disconnected therefrom by mechanism operated in part by the action of the compressed air.

A further object is to provide simple and efiie'ient stop mechanism for controlling the partition valve operating pneumatic mechanism.

Other and further objects of the invention will appear from an examination of the drawings and the following description and claims.

The invention consists in the features, combinations, and details of construction hereinafter described and claimed.

Figure 1 is a sectional view in elevation of a portion of a wind-chest with its stop mechanism, showing a pair of key-valves with their operating mechanism and a register-chamber with its partition-valve and stop mechanism; Fig. 2, a sectional elevation taken on line 2 of Fig. 1, showing the stop-valve in its lowered position; Fig. 3, a transverse broken sectional elevation of another chamber similar to that shown in Fig. 1, taken on line 3 of Fig. 1 looking in the direction of the arrow and showing one of the key-valves; Fig. 4, a sectional plan View of a portion of an organ provided with my improvements with the top of the windchest removed, showing a portion of three register-chambers with stops and valves and a number of keys and key-valves; and Fig. 5, a sectional plan view of a number of keys and stops with their rock-shafts and the connections between such keys and stops and their rock-shafts and also showing the lever-arms for connecting such shafts operatively with the valves.

In constructing a device in accordance with my improvements I provide a wind-chest 0, having partition-walls'b, which divide it into a plurality of separate register wind-chambers, one for each register or set of pipes. Each of these register-chambers is subdivided into two compartments cand d by means of a partition 0 and a partition-valve e, which forms a part of the partition between such compartments. These partition valves are hinged to a shoulder f of the partition near the upper wall 9 of the wind-chest by means of hinges it, which may be of flexible material, and extend across the register-chamber to a shoulder 71 upon the bottom wall of the wind-chest. The compartments 0 of the windchest may be constantly supplied with air under pressure, which may be admitted thereto by means of passages 7s in the end wall Z, which are connected with a suitable source of airsupply. The key-valve compartments 0! are each filled with air under normal or atmospheric pressure while their partition or inlet valves are closed and are adapted to receive the air under pressure from the compartments cl when such valves are open.

In order to provide suitable and eflicient means for operating the partition-valves, a bellows m is provided for each of such valves and comprises a swinging wall or jaw a, connected with a base portion 0 by means of the usual flexible air-tight casing 19, which may be made of leather and fastened to the jaws in any ordinary and well-known manner. The

upper swinging jaw of each bellows is operatively connected to one of the partition-valves by means of a connecting-rod having an adjusting and supporting nut 1, which engages a projecting portion of the jaw of the bellows and is provided at its opposite end with a hook .s', which extends through an eye 5 on the swinging end of the partition-valve. This connecting-rod is so adjusted as to length by means of the supporting-nut that when the swinging jaw of the bellows is in its lower position the partition-valve will be closed, and when in its upper position, the bellows being inflated, the partition-valve will be opened. The opening and closing of the partition-valve is therefore accomplished by the inflation and deflation of the bellows.

It is desirable to provide suitable and efiicient stop mechanism for admitting air under pressure to the bellows and excluding it therefrom, thereby permitting the air under pressure to enter the key-valve compartments of any desired register or sets of pipes or excluding it therefrom. It is also very desirable that this be accomplished by pressure upon a stop both to open and close the desired register, dispensing with pulling out stops to the hindrance of the performer. In order to accomplish these objects, each bellows is provided with an air-passage n, leading therefrom and opening into the air-supply compartment of one of the register chambers and provided with what I will term a stopvalve e for opening and closing such passage between such compartment and bellows. This valve is slidingly mounted upon standards 10 by means of arms having perforations through which the standards extend, and its lower surface is provided with a facing of soft material, such as felt, adapted to contact the valve-seat 2, which has afacing of similar material, so as to effectually close the passage to the admission of air. A connecting-stem 3 extends downward from each valve v through the lower wall of the wind-chest and is seated in a second valve 4, which when in its raised position closes passages 5,communieating with the main airpassage to the bellows. in its lowered position it opens such passages, so as to permit the air to escape from the bellows, thereby causing the connected partition-valve to assume its closed position. A depending Valve-stem 6 forms the stem for both the above-described valves and is mounted in engagement with an operating-lever 7, which is pivotally mounted upon the frame 8 by means of a pivot 9.

In order to enable the admission of wind to the register to be controlled by pressure upon stop mechanism, as distinguished from the pulling of stops, the lower swinging end of the valve-operating lever, above described, is provided with an operating-stop 10, which extends out through the frame of the instrument at the point marked 11 and is pivotally mounted upon the swinging arm 12 of the pivoted lever 13, which is provided with a second stop 14, pivotally mounted upon the oppositelyswinging end of the lower arm 15 of such lever. The main stop is connected to the valveoperating lever by means of an adjustingscrew 16 and threaded-mit mechanism 17, mounted thereon in engagement with the operating-lever arm and adapted to adjust the position of the lever-arm upon the stop. By this arrangen'lent it will be readily seen that the wind maybe admitted to the key-valve compartment of the desired register-chamber by pressing upon the stop 10 and may be excluded therefrom by pressing the stop 1%, thus dispensing with all pulling of stops, and that the pneumatic action of the bellows automatically opens and closes the registers in response to pressure upon the stops, making their action very light.

In order to provide suitable and ellicient means for admitting wind to the individual pipes of any one or more of the registers or sets of pipes by the operation of the corresponding organkey, a wiml-ymssage '18 is provided, m'e-ferably in the walls of the windchest, communicating with the mouth of each pipe 19 at one end of such passage and with the key-valve compartmentat the opposite end. A valve 20, similar to the stop-valve already described, is mounted at the inlet end of each of such passages and is provided with a facing 21, of felt, which engages a similar facing upon the valve-seat and forms an ai r-tight connection therebetween. Each of these valves is provided with adependingvalve-stem 23, having an enlarged end portion 24, provided with a felt cap 25, for closing the perforation 26, through which such valve-stem extends. An operating-lever 27 is mounted in operative engagement with the lower end of the valve-stem upon a rock-shaft 28, and a rockshaft-operating lever 27' is also mounted upon each rock-shaft, and. a strap 29 or similar element is connected to the shaft-operating lever by means of an adj Listing-screw 30 and a threaded nut 31, mounted in threaded engagement therewith and with such lever. The opposite end of this strap is connected, by means of a similar adjusting-screw 32 and an adjusting-nut 33, to the upper swinging arm of a lever 3 1, which is pivotally mounted in the frame by means of a pivot-pin 35 and has a second swinging arm 36, provided with hook mechanism 37, extending through an eye 38 upon a key 39, which is pivoted at one end by means of a pivot 40 in a frame-piece 4C1 of the organ. By this arrangement pressure upon any desired key 39 will cause its keyvalve to open the air-passage to the corresponding pipe when air under pressure has been admitted to the key-valve-containing compartment in which such key-valve is located. it will of course also operate the corresponding key-valves of such key-valve-contaming compartments as are not provided.

with air under pressure, but without producing any tone from such registers.

I have only shown one wind-chest registerchamber with its partition, partition-valve mechanism, and stop mechanism and with two key-valves and key connections and two pipes with their connecting passages for such register all complete, and in Fig. 3 a second register in cross-sectional elevation. It will of course be understood, however, that each register-chamber, such as those here shown, is provided with a full register of pipes, windpassages for each of such pipes, and key-valves for each pipe wind-passage. A key with strap, rock-shaft, and lever mechanism connected therewith is provided and mounted in operative engagement with each set of keyvalves running at right angles to the keyvalve-containing chambers. Each of such sets of valves comprises a key-valve for each chamber, and all of the valves of each set are in operative connection with pipes tuned to the same pitch. Each register-chamber is provided with a partition-valve and bellows, having an air-passage communicating with the air-supply compartment and having stop mechanism and a stop-valve similar to those herein shown and described. There is a rockshaft 28 for each key, and its lever mechanism is operatively connected with the corre' sponding key-valve mechanism in each keyvalve compartment, and each of such rockshafts is provided with a bracket or set of brackets 41, in which are mounted spiral springs 42 by means of threaded adjustingnuts 43 and threaded rods L4, to which one end of such springs are attached and connected at theopposite end with the swinging end of an arm 15 upon the rock-shaft, whereby such rock-shafts and their key and key-valve mechanisms are caused to assume their normal positions.

The front compartments of the respective register-chambers are here shown separated from each other by partition-walls, and I prefer to employ this construction. The keyboard may be placed in any desired position with relation to the rock-shafts and windchest. They are shown in their present relative positions as the simplest and most readily understood embodiment and illustration of my invention.

In operation when the performer desires to employ a certain register he presses the corresponding stop 10, which raises the stopvalve, permitting the air under pressure from the compartment 0 to pass into the bellows, raising the upper jaw thereof, and thereby raising the connected partition-valve to its open position, permitting air under pressure to fill the key-valve compartment d of such wind-chest or register. The pipes of such register will then respond to the operation of any key of the instrument. The operation of any key will cause the corresponding keyvalves in all of the registers to open the windpassages to the corresponding pipes, and the wind will pass through such passages in such registers only as have air under pressure in the key-valve compartments. In order to exclude the air from the key-valve compartment of any register, it is only necessary to press the stop 14 of such register, whereby the air is caused to escape from the bellows of such register, causing the partition-valve to close. One set of pipes being of such construction as to produce organ tones, another flute tones, another string tones, and another reed tones, and there being a separate key-valve compartment for each of such sets of pipes, wind may be admitted to any desired set of pipes or excluded therefrom by the mere pressure upon the corresponding stop, thus dispensing with the necessity of pulling a stop in each instance, and as the wind-controlling or partition valve of each register is raised by the pressure of the air it will be readily understood that the action of the stops is exceedingly light and that they may be Very easily and quickly adjusted without materially hindering the performer in the playing of the instrument. Furthermore, the key-valves of such registers as are not being used are not under air-pressure, and the action ofthe keys is therefore rendered much lighter than if all of such valves were exposed to pressure. In

addition to these advantages it will be seen.

that only suflicient air needbe maintained under pressure to furnish such registers as are in operation.

I claim 1. In a device of the class described, the combination of a wind-chest having a plurality of register wind-chambers, apartition for each of such chambers separating it into compartments, valve mechanism for connecting and disconnecting such compartments, and means for admitting air under pressure to such register-chambers, substantially as described.

2. In a device of the class described, the combination of a wind-chest having a plurality of register wind chambers, means separating each of such register-chambers into two compartments, means for admitting air under pressure to one of the compartments of such register-chambers, and means for connecting and disconnecting the compartments of any one or more of such register-chambers, substantially as described.

3. In adevice of the class described,the combination of a wind-chest having a plurality of register wind-chambers,a partition separating each of such chambers into two compartments, a set of key-valves arranged in one compartment of each of such register-chambers, key mechanism connected with such key-valves, a partition-valve for each registerchamber,and mechanism in engagement with the partitionvalve for opening and closing such valve and thereby connecting and disconnecting the IIO compartments of its register chamber, substantially as described.

a. In a device of the class described,the combination of a wind-chest having a plurality of register wind-chambers, a partition separating each of such chambers into two compartments, valve mechanism for connecting and disconnecting such compartments, a bellows for each register-chamber having at least one movable jaw, mechanism connected to the partitionvalve and in engagement with such movable jaw, and mechanism for admitting air under pressure to such bellows, substantially as described.

5. In adevice of the class described,the combination of a wind-chest having a plurality of register wind-chambers each provided with a plurality of wind passages communicating with a set of pipes and having a passage coinmunicating with a suitable source of air under pressure, a key-valve for each pipe-supply passage, a partition separating each of such chambers into two compartments, a partition-valve mounted intermediate such compartments, a bellows provided with a movable jaw in operative engagement with such partition-valve and also provided with an air-passage communicating with the register-chamher, a stop-valve mounted at one end of such air-passage, mechanism in engagement with such stop-valve for opening and closing it, and mechanism in engagement with the keyvalves for operating them, substantially as described.

6. In a device of the class described, the combination of a wind-chest having a plurality of register wind-chambers each provided with a plurality of wind passages communicating with a set of pipes and having a passage communicating with a suitable source of air under pressure, a key-valve for each pipe-supply passage, a partition-valve for each register wind-chamber, a bellows provided with a movable jaw in operative engagement with such partition-valve and also provided with an air-passage communicating with the registerchamber, a stop-valve mounted at one end of such air-passage, lever mechanism in engagement with such stop-valve, a stop connected with such lever mechanism for opening such stop-valve,and asupplementary stop for closing the valve, substantially as described.

FELIX ZEBROWSKI.

\Vitnesses:

I-I'ARRY I. Gnomes, ANNIE C. CoUn'rnNAY. 

